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JMB390 Schematic ( PDF Datasheet ) - JMicron

Teilenummer JMB390
Beschreibung RAID Port Multiplier Chip
Hersteller JMicron
Logo JMicron Logo 




Gesamt 3 Seiten
JMB390 Datasheet, Funktion
JMicron/JMB390
JMB390 RAID Port Multiplier Chip
1. Overview
JMicron JMB390 is a single chip, 1 to 2-ports Serial ATA II Port Multiplier with RAID function support.
It is designed to provide SATA port expansion, data protection and performance aggregation at various
applications.
JMB390 uses JMicron’s production-proven Multi-port Serial ATA PHY technology and
JMicron-proprietary storage processor to provide very high efficient SATA RAID operation. With an easy
configuration scheme, the device can be a pure port multiplier which provides SATA port expansion just like
a SATA Hub, or hard-drive performance booster which provides a high performance device seen by host
controller or hard-drive data protector which automatically backup data to prevent data loss from hard-drive
damage.
JMB390 is a self-contained storage processor chip which completely frees up the main CPU loading and
the SATA ports comply with eSATA specification, making it suitable for use in both internal system and
external storage applications
2. Compliance, Features
2.1 Compliance
Compliant with Serial ATA II Port
Multiplier Spec. Revision 1.1
Compliant with Serial ATA II PHY
Electrical Spec. Revision 1.0
Compliant with Serial ATA High Speed
Serialized AT Attachment Spec. Revision 2.5
2.2 General
Integrated 3-port SATA II PHY
Integrated PLL for SATA II interface
Total six independent SATA channel
Integrated uP, PROM and SRAM for
firmware programming
Integrated high performance RAID
storage processor
1.3V core and 3.3V I/O power supply
Available in 48-pin QFN package
www.DataSheet.co.kr
2.3 SATA
Supports 3-port 3.0Gbps SATA II
interface
Supports SATA II Gen2i and Gen2m
(External SATA Connection, eSATA)
Output swing control and automatic
impedance calibration for SATA II PHY
Supports asynchronous signal recovery
Supports spread spectrum clocking
Supports partial / slumber power saving
mode
Automatically speed negotiation for 3
Gbps or 1.5 Gbps
Supports BIST and loopback mode
Supports staggered spin-up
Supports 48-bit LBA addressing
Supports ATAPI drives
Copyright © 2008 JMicron Inc. All rights reserved.
Product Brief
Page 1
2008/09/26
Datasheet pdf - http://www.DataSheet4U.net/





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